#include <stdio.h>

typedef unsigned char *byte_pointer;

void main()
{
int ival,val;
float fval;
int *pval;
printf("input a number:\n");
scanf("%d", &val);
ival=val,fval=(float)val,*pval=&ival;
show_int(ival);
show_float(fval);
show_pointer(pval);
}

void show_bytes(byte_pointer start, int len)
{
int i;
for(i=0; i < len; i++)
    printf("%.2x", start[i]);
printf("\n");
}

void show_int(int x)
{
show_bytes((byte_pointer) &x, sizeof(int));
}

void show_float(float x)
{
show_bytes((byte_pointer) &x,sizeof(float));
}

void show_pointer(void *x)
{
show_bytes((byte_pointer) &x, sizeof(void *));
}